Siab -kub resistant mus txog 100℃thiab resistant rau acids thiab alkalis! PPH fittings muab kev ruaj ntseg foob thiab kev saib xyuas yooj yim. Haum rau kev siv tshuaj lom neeg, kev txhim kho hauv tsev, thiab kev kho dej, lawv yog lub teeb yuag thiab yooj yim rau nruab hauv ib kauj ruam.
